[Details, Lodge] Invisibility potion or what does it do?
Invisibility potion means minions, physical/ slash attacks and special skills will not target you.
Attack all heroes special skill attacks will ignore invisible heroes. Attack nearby special skill attacks will ignore nearby invisible heroes.
Special stages, like Poison must, still do damage.
If the only hero left is invisible, Bosses will not trigger special skill ( so their mana bar remains full ) and Bosses will skip their physical/ slash attacks.